EP0147729B1 - Electronic still camera capable of editing picture recorded on disk - Google Patents
Electronic still camera capable of editing picture recorded on disk Download PDFInfo
- Publication number
- EP0147729B1 EP0147729B1 EP84115306A EP84115306A EP0147729B1 EP 0147729 B1 EP0147729 B1 EP 0147729B1 EP 84115306 A EP84115306 A EP 84115306A EP 84115306 A EP84115306 A EP 84115306A EP 0147729 B1 EP0147729 B1 EP 0147729B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnetic recording
- video signals
- recording medium
- rotary magnetic
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000003384 imaging method Methods 0.000 claims description 11
- 230000004044 response Effects 0.000 claims description 10
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
- G11B27/022—Electronic editing of analogue information signals, e.g. audio or video signals
- G11B27/026—Electronic editing of analogue information signals, e.g. audio or video signals on discs
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2508—Magnetic discs
- G11B2220/2512—Floppy disks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S358/00—Facsimile and static presentation processing
- Y10S358/906—Hand-held camera with recorder in a single unit
Definitions
- the present invention relates to an electronic still camera, including an imaging means for imaging an object to produce a unit of video signals representative of the object; driving means for turning a first rotary magnetic recording medium which is detachably mounted thereon; recording means for recording a unit of video signals on said first rotary magnetic recording medium while rotating; a shutter release button for initiating the imaging of an object; oscillator means for generating a first sync signal in response to the operation of said shutter release button; and control means operative in response to operation of said shutter release button and the first sync signal, for controlling said imaging, driving and recording means so as to shoot an object and store a still picture of the object in said first rotary magnetic recording medium in the form of video signals.
- the electronic still camera has a function of editing a picture frame of a still picture magnetically recorded on a rotating magnetic recording medium such as a magnetic disk by an electronic still camera.
- the present invention further relates to an editing system including the same features as mentioned above.
- An electronic camera system has been recently developed which includes an image pickup device, such as a solid-state image pickup device and a camera tube, combined with a recording device in the form of a rotating magnetic recording medium, such as a low-priced magnetic disk with a large storage capacity.
- an image pickup device such as a solid-state image pickup device and a camera tube
- a recording device in the form of a rotating magnetic recording medium, such as a low-priced magnetic disk with a large storage capacity.
- objects are electronically sensed in the form of still pictures, which are in turn recorded on the rotating magnetic recording medium.
- Such recorded still pictures are reproduced by a separate reproducing system such as a television system or printer.
- a still-picture video camera similar to the above is disclosed in DE 323 4758.
- the camera system consists of an object lens, a shutter release button, a photoelectric image-pick-up device which converts the photographic image to a corresponding video signal, a sync signal generator, recording circuit and a control circuit which operates a motor mechanism which turns a magnetic disk at a predetermined speed.
- picture frames are generally recorded in sequence on tracks of a disk. Consequently, the disk may contain also faulty and/or unnecessary frames, which will not be a great problem, in a system which has a random access to any desired track or which can erase recorded signals on a track-by-track basis, at the cost of the longer access time and the inefficiency in terms of the disk storage capacity.
- an editing system is required to record only desired picture frames on a magnetic disk for storage.
- an editing system is also preferable to employ an editing system.
- the system comprises a control system in the form of a microcomputer, a reproducing unit connected to a video monitor, a camera and a video recorder with an attached video monitor.
- the video recorder has three inputs, namely, one from the reproducing unit, the microcomputer and the camera respectively.
- the microcomputer is programmed to automatically control the editing process by alternatively allowing selected video signals from the reproducing unit or the camera to be inputted and recorded onto the tape inside the video recorder.
- the video monitors can be used to control the editing process at the reproduction unit and video recorder respectively.
- Webers Handbuch der Film und Videotechnik 1983 discloses a system for automatically controlling the editing of a finished magnetic video tape.
- the system consists of a control system comprising of a control panel, a processor and a control-unit, a video/audio-mixer unit connected to a video monitor, at least two video reproducing units and one video recorder which records the final edited video and audio signals onto a magnetic video tape.
- Finished production video tapes 1 and 2 are inserted into each of the two reproducing units respectively.
- the control system operates and controls the editing system whereby selected signals from tapes 1 and 2 are sent to the video/audio-mixer unit for final editing and the thus edited signals are transferred to the video recorder for final recording.
- the electronic still camera as mentioned above comprises a first terminal means for receiving video signals representative of a still picture read out from a second rotary magnetic recording medium; second terminal means for receiving a second sync signal in response to a reading operation of the video signals from said second rotary magnetic recording medium; and selecting means for selectively conducting the first and second sync signals from said oscillator means and second terminal means respectively, to said control means; said control means also being responsive to the second sync signal received on said second terminal means and conducted by said selecting means to cause said first rotary magnetic recording medium to be turned so as to record a unit of video signals of a still picture received on said first terminal means onto said first magnetic recording medium.
- the editing system as mentioned above comprises reproducing means for reproducing a unit of second video signals representative of a still picture and a second sync signal recorded on a second rotary magnetic recording medium which is detachably mounted thereon;
- the figure is a schematic block diagram showing an embodiment of an electronic still camera in accordance with the present invention.
- the embodiment of the present invention basically comprises a camera 100 and a reproducing unit 200.
- the camera 100 is so-called an electronic still camera which is constructed so as to be electrically connected to the reproducing unit 200 through terminals 102 and 104.
- the camera 100 may advantageously be separated from the reproducing unit 200 to be utilized in the form of a single camera unit.
- the camera 100 comprises components required to shoot an object, such as a lens 106, an optical shutter 108, and solid-state image pickup device (or a camera tube) 110.
- the solid-state image pickup device 110 has a video output 112 connected to a video signal recording circuit 114.
- a frequency modulation is conducted on video signals delivered from the image pickup device 110 in accordance with a raster scanning fashion to produce the resultant signals as modulated video signals.
- Video recording circuit 114 has a modulated video signal output 116 connected via a changeover switch 118 and a line 138 to a magnetic recording head 122 for transferring the modulated video signals thereto.
- the switch 118 has another terminal 140 connected to the modulated video signal input terminal 102 through a switch 120.
- the magnetic head 122 which is carried by a head transport mechanism, not shown, and is movable to a desired track position, for example, track 126 of a disk, comprises an electromagnetic transducer for recording a video signal on the selected track 126.
- the magnetic disk 124 is detachably mounted on a rotating shaft 130 to be driven by a motor 128, and is rotated at a stationary speed in a predetermined direction by the motor 128 and its servo system 132.
- the operation of the overall camera system 100 is controlled by a control circuit 134.
- the control circuit 134 has a reference signal input 154 to which a sync signal is supplied selectively via a changeover switch 144 from a reference oscillator 136, or externally on the terminal 104.
- the control circuit 134 controls the shutter 108, the image pickup device 110, the video signal recording circuit 114, the switch 120, the servo system 132, etc. in synchrony with the sync signal as indicated with control lines with the arrow 146, 148, 150, and 152, so that a unit of, for instance, a field of still picture video signals are recorded on the track 126 in response to the operation of a shutter release button 142.
- the switches 118 and 144 which may be manual switches which operate cooperatively with each other, are set as depicted in the block diagram when the camera 100 is used as an independent unit and, are set to states opposite to those shown in this figure when the camera 100 is used as an editing device connected to a reproducing apparatus 200 as will be described later. If a pair of disconnectable connector units are employed to connect output lines 204 and 206 of the reproducing unit 200 to the terminals 102 and 104, respectively, the system will be advantageously configured so that the switches 118 and 144 are set to the states opposite to those shown in this block diagram when the connector units are mechanically engaged with each other.
- the amount of the modulated video signals recorded on one track 126 is equivalent to a unit of, for instance, a field of picture obtained by the image pickup device 110 when the switch 118 is at the position illustrated in this figure.
- a field of video signals are developed from the image pickup device 110 to undergo a frequency modulation in the video recording circuit 114 so as to be recorded on the track 126.
- the control circuit 134 controls these elements in synchronism with the sync signal generated by the reference oscillator 136 in order to perform the recording operation.
- the switch 120 With the switch 118 set to the contact position opposite to that shown in the figure, the switch 120 is closed when the release button is actuated. In this case, a modulated video signal externally supplied to the modulated video signal input terminal 102 is recorded on the track 126.
- the control circuit 134 controls these elements in synchrony with the sync signal supplied to the sync signal input terminal 104 in order to conduct the recording operation.
- the reproducing unit 200 has the modulated video signal output 204 to be connected to the modulated video signal input 102 of the camera 100, the sync signal output 206 to be connected to the sync signal input 104 thereof, and a video signal output terminal 208 to be connected to a video monitor unit 210 when required.
- the reproducing unit 200 comprises an operator's panel section for selecting a desired track on the magnetic disk 124a to reproduce visual images from signals obtained from the selected track, and a control section for controlling the tracking of the magnetic reproducing head involved, the driving in rotation of the magnetic disk 124a, and the like operations.
- a modulated video signal obtained through the frequency modulation is read out from the disk 124a to be transferred to a signal line 212, and is in turn demodulated by the reproducing unit 200, for example, into a video signal in conformity with the NTSC format.
- the resultant signal is delivered from the output 208 to the monitor unit 210.
- the reproducing unit 200 also amplifies the video signal read out from the magnetic disk 124a and delivers the amplified signal to the modulated video signal output 204 without demodulation. It separates a sync signal involved in the signals read out from the magnetic disk 124a to develop the separated sync signal from the sync signal output 206.
- the sync signal may be extracted from video signals, the vertical synchronization of a picture can be advantageously established by detecting a synchronization mark formed, for example, on a core of the magnetic disk 124a.
- the terminals 102 and 104 are connected to the reproducing unit 200, and the switches 118 and 144 are each set to the states opposite to those depicted in this figure.
- a magnetic disk 124a on which original pictures to be edited are recorded is loaded into the reproducing unit 200.
- Such original pictures should be preferably monitored with the monitor unit 210.
- Another magnetic disk 124 is loaded in the camera 100, and the magnetic recording head 122 is moved to an unrecorded track, for example, track 126 on which no signals have been recorded.
- a desired frame of image may be displayed on the monitor unit 210 by operating the operator's panel section of the reproducing unit 200, which causes the video and sync signals associated with this image are delivered to the terminals 204 and 206.
- the control circuit 134 controls the motor 128 via the servo system 132 in response to the operation of the shutter release button 142 so as to rotate the magnetic disk 124 at a stationary speed synchronized with the sync signal fed to the terminal 104 from the sync signal output 206 of the reproducing unit 200.
- the control circuit 134 closes the switch 120 in response to the sync signal received on the terminal 104, and keeps the switch 120 closed for a time period equivalent to that of a field of video signals so that the video signals delivered from the video signal output 204 of the reproducing unit 200 are fed to the magnetic recording head 122.
- a field of video signals read out from the magnetic disk 124a are thus recorded on the track 126 of the magnetic disk 124.
- a tone generating device such as a piezo-electric device may be arranged so that a psendo-shutter sound is produced when the recording operation on the magnetic disk 124 is initiated.
- only the video signals of the desired frame can be selected from the signals recorded on the magnetic disk 124a so that the selected video signals can be re-recorded on the magnetic disk 124.
- the video signals delivered from the modulated video signal output 204 of the reproducing unit 200 have undergone the frequency modulation in the embodiment, this signal scheme need not be necessarily adopted.
- a digital video signal system using the luminance and chroma signals or a line sequential signal system in which signals are alternately processed for each scanning line is also applicable.
- a high- quality picture can be reproduced because the frequency modulation is conducted on the video signals.
- the functions of an ordinary camera dedicated to taking pictures are fully utilized for the camera 100 with the switches 118, 144, and 120, the signal terminals 102 and 104, and several associated circuits added in circuit structure.
- the desired frames of pictures recorded on a magnetic disk can be re-recorded on another disk in accordance with the present invention.
- This re-recording operation can be implemented by use of the electronic camera's recording function which is not ordinarily used when a reproducing unit is employed, where only video and sync signals are supplied from an apparatus for reproducing video signals recorded on a magnetic disk. Consequently, pictures recorded on a magnetic disk can be edited by using an electronic still camera having an editing function accomplished with a simple structure.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Television Signal Processing For Recording (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
Description
- The present invention relates to an electronic still camera, including an imaging means for imaging an object to produce a unit of video signals representative of the object; driving means for turning a first rotary magnetic recording medium which is detachably mounted thereon; recording means for recording a unit of video signals on said first rotary magnetic recording medium while rotating; a shutter release button for initiating the imaging of an object; oscillator means for generating a first sync signal in response to the operation of said shutter release button; and control means operative in response to operation of said shutter release button and the first sync signal, for controlling said imaging, driving and recording means so as to shoot an object and store a still picture of the object in said first rotary magnetic recording medium in the form of video signals. In particular the electronic still camera has a function of editing a picture frame of a still picture magnetically recorded on a rotating magnetic recording medium such as a magnetic disk by an electronic still camera.
- The present invention further relates to an editing system including the same features as mentioned above.
- An electronic camera system has been recently developed which includes an image pickup device, such as a solid-state image pickup device and a camera tube, combined with a recording device in the form of a rotating magnetic recording medium, such as a low-priced magnetic disk with a large storage capacity. According to this system, objects are electronically sensed in the form of still pictures, which are in turn recorded on the rotating magnetic recording medium. Such recorded still pictures are reproduced by a separate reproducing system such as a television system or printer.
- A still-picture video camera similar to the above is disclosed in DE 323 4758. The camera system consists of an object lens, a shutter release button, a photoelectric image-pick-up device which converts the photographic image to a corresponding video signal, a sync signal generator, recording circuit and a control circuit which operates a motor mechanism which turns a magnetic disk at a predetermined speed.
- When the shutter release button is operated a photographic image of the object is transformed into a corresponding unit of video signals. These signals go on to the recording circuit and are subsequently recorded on the magnetic disk. The driving means and recording means are operated in accordance with the sync signal.
- In an electronic camera system, picture frames are generally recorded in sequence on tracks of a disk. Consequently, the disk may contain also faulty and/or unnecessary frames, which will not be a great problem, in a system which has a random access to any desired track or which can erase recorded signals on a track-by-track basis, at the cost of the longer access time and the inefficiency in terms of the disk storage capacity.
- Among the systems of the type which does not have a random access function or which includes a very thin and small disk recordable with a high recording density, however, there are some systems which cannot perform the track-by-track basis erasing. When it is desired to reproduce the pictures recorded on a disk in such a system, the recorded pictures including the faulty frames resultant from an erroneous picture shooting condition and the unnecessary frames may be reproduced and displayed on a screen of a monitor device.
- To avoid above-mentioned difficulties, an editing system is required to record only desired picture frames on a magnetic disk for storage. For an effective usage of the full disk storage capacity, it is also preferable to employ an editing system.
- Funkschau 1/1983 (pages 57-60) discloses a system for automatically editing completed video tapes. The system comprises a control system in the form of a microcomputer, a reproducing unit connected to a video monitor, a camera and a video recorder with an attached video monitor. The video recorder has three inputs, namely, one from the reproducing unit, the microcomputer and the camera respectively. The microcomputer is programmed to automatically control the editing process by alternatively allowing selected video signals from the reproducing unit or the camera to be inputted and recorded onto the tape inside the video recorder. The video monitors can be used to control the editing process at the reproduction unit and video recorder respectively.
- Webers Handbuch der Film und Videotechnik 1983 (pages 475-483) discloses a system for automatically controlling the editing of a finished magnetic video tape. The system consists of a control system comprising of a control panel, a processor and a control-unit, a video/audio-mixer unit connected to a video monitor, at least two video reproducing units and one video recorder which records the final edited video and audio signals onto a magnetic video tape. Finished production video tapes 1 and 2 are inserted into each of the two reproducing units respectively. The control system operates and controls the editing system whereby selected signals from tapes 1 and 2 are sent to the video/audio-mixer unit for final editing and the thus edited signals are transferred to the video recorder for final recording.
- Since an electronic camera system as described above has been generally developed for family use, and not for professional application, such an editing system should be preferably configured as simply as possible and should be economically used.
- It is therefore an object of the present invention to provide an electronic still camera in a simple configuration having a function to edit picture frames recorded on a magnetic disk.
- In accordance with the present invention, the electronic still camera as mentioned above comprises a first terminal means for receiving video signals representative of a still picture read out from a second rotary magnetic recording medium; second terminal means for receiving a second sync signal in response to a reading operation of the video signals from said second rotary magnetic recording medium; and selecting means for selectively conducting the first and second sync signals from said oscillator means and second terminal means respectively, to said control means; said control means also being responsive to the second sync signal received on said second terminal means and conducted by said selecting means to cause said first rotary magnetic recording medium to be turned so as to record a unit of video signals of a still picture received on said first terminal means onto said first magnetic recording medium.
- According to the invention the editing system as mentioned above comprises reproducing means for reproducing a unit of second video signals representative of a still picture and a second sync signal recorded on a second rotary magnetic recording medium which is detachably mounted thereon;
- first input means interconnected to said reproducing means for receiving the second video signals;
- second input means interconnected to said reproducing means for receiving the second sync signal;
- and selecting means for selectively conducting the first and second sync signals from said oscillator means and second input means respectively, to said control means;
- said control means also being responsive to the second sync signal received on said second input means and conducted by said selecting means to cause said first rotary magnetic recording medium to be turned so as to record a unit of second video signals of still picture received on said first input means onto said first magnetic recording medium.
- Further embodiments of the invention are claimed in the sub-claims, by this reference the related text of which is included into the specification.
- The objects and features of the present invention will become more apparent from the consideration of the following detailed description taken in conjunction with the accompanying drawing in which:
- The figure is a schematic block diagram showing an embodiment of an electronic still camera in accordance with the present invention.
- Referring to the schematic block diagram representing an electronic still camera, the embodiment of the present invention basically comprises a
camera 100 and a reproducingunit 200. Thecamera 100 is so-called an electronic still camera which is constructed so as to be electrically connected to the reproducingunit 200 throughterminals - The
camera 100 may advantageously be separated from the reproducingunit 200 to be utilized in the form of a single camera unit. Thecamera 100 comprises components required to shoot an object, such as alens 106, anoptical shutter 108, and solid-state image pickup device (or a camera tube) 110. - The solid-state
image pickup device 110 has avideo output 112 connected to a videosignal recording circuit 114. In the videosignal recording circuit 114, a frequency modulation is conducted on video signals delivered from theimage pickup device 110 in accordance with a raster scanning fashion to produce the resultant signals as modulated video signals.Video recording circuit 114 has a modulatedvideo signal output 116 connected via achangeover switch 118 and aline 138 to amagnetic recording head 122 for transferring the modulated video signals thereto. Theswitch 118 has anotherterminal 140 connected to the modulated videosignal input terminal 102 through aswitch 120. - The
magnetic head 122, which is carried by a head transport mechanism, not shown, and is movable to a desired track position, for example,track 126 of a disk, comprises an electromagnetic transducer for recording a video signal on theselected track 126. Themagnetic disk 124 is detachably mounted on a rotatingshaft 130 to be driven by amotor 128, and is rotated at a stationary speed in a predetermined direction by themotor 128 and itsservo system 132. - The operation of the
overall camera system 100 is controlled by acontrol circuit 134. Thecontrol circuit 134 has areference signal input 154 to which a sync signal is supplied selectively via achangeover switch 144 from a reference oscillator 136, or externally on theterminal 104. Thecontrol circuit 134 controls theshutter 108, theimage pickup device 110, the videosignal recording circuit 114, theswitch 120, theservo system 132, etc. in synchrony with the sync signal as indicated with control lines with thearrow track 126 in response to the operation of ashutter release button 142. - The
switches camera 100 is used as an independent unit and, are set to states opposite to those shown in this figure when thecamera 100 is used as an editing device connected to a reproducingapparatus 200 as will be described later. If a pair of disconnectable connector units are employed to connectoutput lines unit 200 to theterminals switches track 126 is equivalent to a unit of, for instance, a field of picture obtained by theimage pickup device 110 when theswitch 118 is at the position illustrated in this figure. When therelease button 142 is actuated, a field of video signals are developed from theimage pickup device 110 to undergo a frequency modulation in thevideo recording circuit 114 so as to be recorded on thetrack 126. Thecontrol circuit 134 controls these elements in synchronism with the sync signal generated by the reference oscillator 136 in order to perform the recording operation. - With the
switch 118 set to the contact position opposite to that shown in the figure, theswitch 120 is closed when the release button is actuated. In this case, a modulated video signal externally supplied to the modulated videosignal input terminal 102 is recorded on thetrack 126. Thecontrol circuit 134 controls these elements in synchrony with the sync signal supplied to the syncsignal input terminal 104 in order to conduct the recording operation. - The reproducing
unit 200 has the modulatedvideo signal output 204 to be connected to the modulatedvideo signal input 102 of thecamera 100, thesync signal output 206 to be connected to thesync signal input 104 thereof, and a videosignal output terminal 208 to be connected to avideo monitor unit 210 when required. - When a
magnetic disk 124a on which video signals are recorded by use of an electronic still camera, such as thecamera 100, is loaded into the reproducingunit 200, video signals are ordinarily read out from themagnetic disk 124, as conceptually indicated by thearrow line 212, and are reproduced in the form of visible images on themonitor unit 210. The reproducingunit 200 comprises an operator's panel section for selecting a desired track on themagnetic disk 124a to reproduce visual images from signals obtained from the selected track, and a control section for controlling the tracking of the magnetic reproducing head involved, the driving in rotation of themagnetic disk 124a, and the like operations. A modulated video signal obtained through the frequency modulation is read out from thedisk 124a to be transferred to asignal line 212, and is in turn demodulated by the reproducingunit 200, for example, into a video signal in conformity with the NTSC format. The resultant signal is delivered from theoutput 208 to themonitor unit 210. - The reproducing
unit 200 also amplifies the video signal read out from themagnetic disk 124a and delivers the amplified signal to the modulatedvideo signal output 204 without demodulation. It separates a sync signal involved in the signals read out from themagnetic disk 124a to develop the separated sync signal from thesync signal output 206. Although the sync signal may be extracted from video signals, the vertical synchronization of a picture can be advantageously established by detecting a synchronization mark formed, for example, on a core of themagnetic disk 124a. - To utilize the
camera 100 as an editing system, theterminals unit 200, and theswitches magnetic disk 124a on which original pictures to be edited are recorded is loaded into the reproducingunit 200. Such original pictures should be preferably monitored with themonitor unit 210. - Another
magnetic disk 124 is loaded in thecamera 100, and themagnetic recording head 122 is moved to an unrecorded track, for example, track 126 on which no signals have been recorded. - A desired frame of image may be displayed on the
monitor unit 210 by operating the operator's panel section of the reproducingunit 200, which causes the video and sync signals associated with this image are delivered to theterminals - If the
shutter release button 142 of thecamera 100 is actuated at this moment, thecontrol circuit 134 controls themotor 128 via theservo system 132 in response to the operation of theshutter release button 142 so as to rotate themagnetic disk 124 at a stationary speed synchronized with the sync signal fed to the terminal 104 from thesync signal output 206 of the reproducingunit 200. Thecontrol circuit 134 closes theswitch 120 in response to the sync signal received on the terminal 104, and keeps theswitch 120 closed for a time period equivalent to that of a field of video signals so that the video signals delivered from thevideo signal output 204 of the reproducingunit 200 are fed to themagnetic recording head 122. A field of video signals read out from themagnetic disk 124a are thus recorded on thetrack 126 of themagnetic disk 124. In order to clearly notify the recording operation to the operator, a tone generating device such as a piezo-electric device may be arranged so that a psendo-shutter sound is produced when the recording operation on themagnetic disk 124 is initiated. - In accordance with the present invention, accordingly, only the video signals of the desired frame can be selected from the signals recorded on the
magnetic disk 124a so that the selected video signals can be re-recorded on themagnetic disk 124. - Although the video signals delivered from the modulated
video signal output 204 of the reproducingunit 200 have undergone the frequency modulation in the embodiment, this signal scheme need not be necessarily adopted. For example, a digital video signal system using the luminance and chroma signals or a line sequential signal system in which signals are alternately processed for each scanning line is also applicable. - In the embodiment described above, a high- quality picture can be reproduced because the frequency modulation is conducted on the video signals. Moreover, the functions of an ordinary camera dedicated to taking pictures are fully utilized for the
camera 100 with theswitches signal terminals - While re-recording video signals, character data as well as image data from other processing units may be combined therewith to be recorded on a disk.
- As described above, the desired frames of pictures recorded on a magnetic disk can be re-recorded on another disk in accordance with the present invention. This re-recording operation can be implemented by use of the electronic camera's recording function which is not ordinarily used when a reproducing unit is employed, where only video and sync signals are supplied from an apparatus for reproducing video signals recorded on a magnetic disk. Consequently, pictures recorded on a magnetic disk can be edited by using an electronic still camera having an editing function accomplished with a simple structure.
- While the present invention has been described with reference to the particular illustrative embodiment, it is not to be restrictive by the embodiment, but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiment without departing from the scope and spirit of the present invention.
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP241068/83 | 1983-12-22 | ||
JP58241068A JPS60134574A (en) | 1983-12-22 | 1983-12-22 | Electronic still camera |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0147729A2 EP0147729A2 (en) | 1985-07-10 |
EP0147729A3 EP0147729A3 (en) | 1987-05-20 |
EP0147729B1 true EP0147729B1 (en) | 1990-05-09 |
Family
ID=17068818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84115306A Expired - Lifetime EP0147729B1 (en) | 1983-12-22 | 1984-12-12 | Electronic still camera capable of editing picture recorded on disk |
Country Status (4)
Country | Link |
---|---|
US (1) | US4660102A (en) |
EP (1) | EP0147729B1 (en) |
JP (1) | JPS60134574A (en) |
DE (1) | DE3482224D1 (en) |
Families Citing this family (20)
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US5198941A (en) * | 1985-03-27 | 1993-03-30 | Canon Kabushiki Kaisha | Recording or reproducing apparatus |
US4746990A (en) * | 1985-12-02 | 1988-05-24 | Olympus Optical Co., Ltd. | Detachable unit electronic camera |
US4812922A (en) * | 1986-05-16 | 1989-03-14 | Fuji Photo Film Co., Ltd. | Still video signal playback apparatus with still video recording function |
JPS63142963A (en) * | 1986-12-05 | 1988-06-15 | Hitachi Ltd | Electronig album system |
US4788600A (en) * | 1987-04-15 | 1988-11-29 | Eastman Kodak Company | Video apparatus for generating an adjustable contrast video signal from a photographic print |
US5596419A (en) * | 1987-06-16 | 1997-01-21 | Canon Kabushiki Kaisha | Video system using two different kinds of recording media |
US4970608A (en) * | 1988-03-18 | 1990-11-13 | Olympus Optical Co., Ltd. | Editing system for rearranging allocation of information units on an information recording medium |
US5086345A (en) * | 1988-04-07 | 1992-02-04 | Fuji Photo Film Co., Ltd. | Method of operation in a still video camera system for transferring track information from a playback device to the still video camera |
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-
1983
- 1983-12-22 JP JP58241068A patent/JPS60134574A/en active Pending
-
1984
- 1984-12-12 EP EP84115306A patent/EP0147729B1/en not_active Expired - Lifetime
- 1984-12-12 DE DE8484115306T patent/DE3482224D1/en not_active Expired - Fee Related
- 1984-12-14 US US06/681,583 patent/US4660102A/en not_active Expired - Lifetime
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Title |
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Webers Handbuch der Film- und Videotechnik 1983, pp. 475-483, 540-544 * |
Also Published As
Publication number | Publication date |
---|---|
EP0147729A3 (en) | 1987-05-20 |
EP0147729A2 (en) | 1985-07-10 |
DE3482224D1 (en) | 1990-06-13 |
US4660102A (en) | 1987-04-21 |
JPS60134574A (en) | 1985-07-17 |
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